illusion
Explanation
This is a single-panel comic with a caption below. A woman approaches a man on the street and says: "Hi, we've never met, but I want to tell you that everything that happens in your life after this conversation -- love, career, kids, growing old, marriage, children, EVERYTHING -- is an illusion. And I'm the last person that the moment you die, you will wake up right here listening to me as I finish this sentence."
The caption reads: "Philosophy of mind really improved my pranks."
The joke works by taking a genuine philosophical thought experiment -- the idea that reality might be a simulation, dream, or illusion (drawing on everything from Descartes' demon to simulation theory to the "last five minutes" hypothesis) -- and weaponizing it as a street prank. The woman is essentially planting an unfalsifiable existential crisis in a stranger's mind. The victim cannot prove her wrong, because any evidence they gather about reality being real could itself be part of the illusion she described.
What makes this especially cruel and funny is that the prank has no resolution. Unlike a jump scare or a hidden camera bit, this prank works by lodging a permanent seed of doubt. On their deathbed, this person might genuinely wonder for a split second if they are about to wake up on that street corner. The caption's deadpan framing -- treating this as simply a "prank" improved by studying philosophy of mind -- adds to the humor by trivializing a genuinely unsettling existential scenario as mere mischief. The comic satirizes how philosophy, often seen as impractical, could in fact be devastatingly practical if applied with malicious creativity.